Kerr系数随机扰动下孤子间相互作用的研究  

Influences of Kerr coefficient distributing randomly on the interaction of optical solitons

作　　者：汪仲清[1] 李俊红[1] 安广雷[1] 

机构地区：[1]重庆邮电学院光电工程学院,重庆400065

出　　处：《激光杂志》2005年第6期55-57,共3页Laser Journal

摘　　要：从描述光纤中皮秒孤子传输的修正非线性薛定谔方程出发,应用对称分步傅立叶变换对色散位移光纤中Kerr系数随机扰动影响下的孤子间相互作用进行了数值研究。结果表明,Kerr系数随机扰动下孤子间的作用比Kerr系数不变时更为严重,前者增强了孤子间的相互作用,恶化了孤子的传输特性。研究结果还表明,传统的不等振幅传输法在一定程度上仍然可以有效地抑制Kerr系数扰动影响下的孤子间作用。Starting from the modified nonlinear Schrodinger equation describing the propagation of picoseconds optical soliton,the nteraction of solitons in dispersion-shifted fibers with Kerr coefficient distributing randomly is studied numerically by making use of symmetrical slit-step Fourier transformation method,The results show that the interaction of solitons uner the influence of Kerr coefficient disturbing randomly is stronger than that of Kerr coefficient is invariable.Therefore,the propagation properties of soliton are deteriorated.It is also shown that the traditional unequal amplitude imputing method can still reduce the interaction of Kerr coefficient random distribution effectively in a certain degree.

关 键 词：KERR系数 孤子间作用 色散位移光纤 随机扰动 

分 类 号：TN929.11[电子电信—通信与信息系统]